{"id":"CVE-2026-34178","revision":"f1a7027f75fa4c2da7fa4c20577e354c","records":[{"revision":"f1a7027f75fa4c2da7fa4c20577e354c","observedAt":"2026-10-27T09:03:00.507+00:00","statement":{"source":"nvd","id":"CVE-2026-34178","aliases":[],"title":"In Canonical LXD before 6.8, the backup import path validates project restrictions against backup/index.yaml in the supplied tar archive but creates the instance from backup/container/backup.yaml, a separate file in the same archive that is…","description":"In Canonical LXD before 6.8, the backup import path validates project restrictions against backup/index.yaml in the supplied tar archive but creates the instance from backup/container/backup.yaml, a separate file in the same archive that is never checked against project restrictions. An authenticated remote attacker with instance-creation permission in a restricted project can craft a backup archive where backup.yaml carries restricted settings such as security.privileged=true or raw.lxc directives, bypassing all project restriction enforcement and allowing full host compromise.","state":0,"publishedAt":"2026-04-09T10:16:21.82+00:00","modifiedAt":"2026-10-26T21:10:00.17+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security@ubuntu.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","score":9.1,"severity":"CRITICAL"}],"references":["https://github.com/canonical/lxd/pull/17921","https://github.com/canonical/lxd/security/advisories/GHSA-q96j-3fmm-7fv4"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-34178","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-20"],"productCriteria":["cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-04-09T10:16:21.820","lastModified":"2026-10-26T21:10:00.170"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-34178","identifiers":["CVE-2026-34178"]},"retained":false,"historicalAffected":[]}],"coverage":[]}